Grandstream SIP ATA 2 Port FXS Gateway | HT-812
SKU: 1514177762

Grandstream SIP ATA 2 Port FXS Gateway | HT-812

Sale price$435.94 Regular price$484.38
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Ships within 48 hours · Estimated delivery Jul 8 - Jul 13

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Description

Grandstream SIP ATA 2 Port FXS Gateway | HT-812Bridge Your Analog Devices to a Powerful VoIP Network Unlock the full potential of VoIP technology without abandoning your trusted analog devices with the Grandstream HT812. This advanced 2 port Analog Telephone Adapter (ATA) allows you to seamlessly connect analog phones and fax machines to any VoIP network, making it an ideal solution for home and office environments. Built with Grandstream's market leading SIP ATA gateway technology, the HT812

Bridge Your Analog Devices to a Powerful VoIP Network

Unlock the full potential of VoIP technology without abandoning your trusted analog devices with the Grandstream HT812. This advanced 2-port Analog Telephone Adapter (ATA) allows you to seamlessly connect analog phones and fax machines to any VoIP network, making it an ideal solution for home and office environments. Built with Grandstream's market-leading SIP ATA/gateway technology, the HT812 delivers exceptional voice quality and reliability. It features two FXS ports and an integrated Gigabit NAT router, providing powerful performance and routing capabilities up to 100MBps. Experience crystal-clear conversations thanks to support for wideband HD codecs.

Key Features:

  • Connect 2 Analog Devices: Supports 2 SIP profiles across 2 FXS ports, allowing you to connect two separate analog phones or fax machines.
  • High-Speed Performance: Equipped with dual 10/100/1000Mbps Gigabit ports and an integrated NAT router for outstanding network performance.
  • Robust Security: Protect your calls and accounts with state-of-the-art TLS and SRTP security encryption technology.
  • Advanced Telephony: Supports essential features like 3-way voice conferencing per port, call waiting, call transfer, and a wide range of caller ID formats.
  • Reliable Fax-over-IP: Features support for T.38 Fax protocol for dependable faxing over your IP network.
  • Effortless Provisioning: Automated provisioning options, including TR-069 and XML config files, make deployment and management simple, especially with Grandstream's UCM series of IP PBXs for Zero Configuration provisioning.
  • Failover Protection: A failover SIP server automatically switches to a secondary server if the main one loses connection, ensuring continuous service.

Technical Specifications

Interfaces
Telephone Interfaces Two (2) RJ11 FXS ports
Network Interfaces Two (2) 10/100/1000Mbps RJ45 ports
LED Indicators POWER, LAN, WAN, PHONE1, PHONE2
Factory Reset Button Yes
Voice, Fax, Modem
Telephony Features Caller ID display or block, call waiting, flash, blind or attended transfer, forward, hold, do not disturb, 3-way conference
Voice Codecs G.711 with Annex I/II, G.722, G.723.1, G.729A/B, G.726, iLBC, OPUS, dynamic jitter buffer, advanced line echo cancellation
Fax over IP T.38 compliant Group 3 Fax Relay up to 14.4kpbs and auto-switch to G.711 for Fax Pass-through
Short/Long Haul Ring Load 3 REN, up to 1km on 24AWG line
Caller ID Bellcore Type 1 & 2, ETSI, BT, NTT, and DTMF-based CID
Disconnect Methods Busy Tone, Polarity Reversal/Wink, Loop Current
Signaling & Control
Network Protocols TCP/IP/UDP, RTP/RTCP, HTTP/HTTPS, ARP/RARP, ICMP, DNS, DHCP, NTP, TFTP, SSH, STUN, SIP (RFC3261), SIP over TCP/TLS, SRTP, TR-069
QoS Layer 2 (802.1Q VLAN, 802.1p) and Layer 3 (ToS, DiffServ, MPLS)
DTMF Method In-audio, RFC2833 and/or SIP INFO
Provisioning and Control HTTP, HTTPS, SSH, TFTP, TR-069, secure and automated provisioning using AES encryption
Security
Media SRTP
Control TLS/SIPS/HTTPS
Management Syslog support, SSH, remote management using web browser
Physical
Universal Power Supply Input: 100-240VAC, 50-60Hz; Output: 12V/0.5A
Dimensions 28.5 x 130 x 90 mm (H x W x D)
Weight 353.33g
Environmental
Operational Temperature 32º – 104ºF or 0º – 40ºC
Storage Temperature 14º – 140ºF or -10º – 60ºC
Humidity 10 – 90% Non-condensing
Compliance FCC/CE/RCM
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 1514177762

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Jessica Rousseau Bradburn
Chelsea, US
★★★★★ 4
Beautiful, but not as durable as expected
Color: Black
We’ve been using this soap holder for about a year and while it is functional and fits our space nicely, it’s starting to rust. I’m a little disappointed that a product designed to hold wet sponges and soap doesn’t have proper coating to prevent rusting. Other than that, I love it. The tray catches runoff and easily rinses off. It home all my bottle brushes, two glass soap jars and my sponge. The design is pretty and matches my other kitchen products.
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Reviewed in the United States on January 4, 2026
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Ruth Wallace
Natrona Heights, US
★★★★★ 5
Tidy and Rust Resistant
Color: Silver
Nice and tidy! Love tgat it is rust resistant
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Reviewed in the United States on May 30, 2026
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Elizabeth White
Bozeman, US
★★★★★ 5
Would recommend
Color: Black, Color: Black
I love this new addition to my counter. Much more modern looking and keeps everything in one place looking organized.
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Reviewed in the United States on May 26, 2026
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Cindy
Pawtucket, US
★★★★★ 5
Perfect
Color: Black
I can’t use the holders that drain in the sink. This works perfectly for my needs.
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Reviewed in the United States on April 29, 2026
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Beth99
Waukegan, US
★★★★★ 5
Great item!
Color: Black
The only thing that would make this item better would be for it to come with the soap dispensers. My current ones didn't fit it in, so I had to swap. I really like the drip tray to make cleaning it easier!
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Reviewed in the United States on April 16, 2026

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